headbolt
A bolt that is used to secure the head of something (such as the cylinder head of an internal combustion engine).
Noun
- A bolt that is used to secure the head of something (such as the cylinder head of an internal combustion engine).
- The headbolt heater consists of a hollow steel bolt containing an electric heating element. This device is designed to heat the water jacket and is applied to the engine head by replacing a headbolt. - 1949, American...
- A second type replaces a headbolt or freeze plug depending on manufacturer's recommendations included with the unit. - 1953, Commercial Car Journal - Volume 86, page 79:
- These systems consisted of a panic-bar-activated headbolt, footbolt, and mortised deadbolt. The headbolt and footbolt are 5/8-inch stainless steel bolts with a -inch projection (throw) at the top and bottom encased in...
Origin
From head + bolt.